Yesterday BBBH60799 Senior /Principal Java Engineer (Tech Lead) £80000 - £85000 per annum Belfast

Northern Ireland Water Limited; Belfast; On-site; GBP 55,000 - 75,000; Full time

Job summary

A global software company based in Belfast is seeking an experienced Senior Software Engineer (Tech Lead) to design and evolve complex applications. This role combines hands-on software development with technical leadership. Key responsibilities include leading technical design and implementation, mentoring teams, and ensuring high-quality solutions. The position offers a competitive compensation package, excellent health benefits, and opportunities for growth.

Benefits

Competitive compensation

Health benefits

Flexible time off

Learning opportunities

Supportive environment

Qualifications

• Hands-on experience with Java and Spring Boot.
• Front-end experience with React / JavaScript / TypeScript.
• Strong knowledge of Docker and AWS SaaS environments.
• Experience with CI/CD, automated testing, and security best practices.

Responsibilities

• Lead the technical design and implementation of new product features and enhancements.
• Modernise and refactor existing codebases for scalability and cloud readiness.
• Provide day-to-day technical direction and mentorship for developers.
• Collaborate with product and architecture teams to ensure alignment.

Skills

Java

Spring Boot

React/TypeScript

Docker

AWS

PostgreSQL

Redis

CI/CD

Automated testing

Job description

MCS Group is delighted to be partnering with a global software company that is driving innovation within the manufacturing technology space. This business is on an exciting journey of modernising its legacy product portfolio and expanding its best‑in‑class automation solutions - and they are now seeking an experienced Senior Software Engineer (Tech Lead) to join their growing team.

📍 Location: Belfast (Hybrid)

The Role

As a Senior Software Engineer, you'll play a pivotal role in designing, developing, and evolving complex enterprise applications that power a market‑leading manufacturing insights platform. You'll combine hands‑on software development with technical leadership - driving new feature delivery, product modernisation, and quality improvements.

You'll work closely with distributed engineering teams, mentoring developers, influencing technical direction, and ensuring scalable, high‑quality solutions that make a real impact for customers globally.

What You'll Be Doing

• Lead the technical design and implementation of new product features and enhancements.
• Modernise and refactor existing codebases for scalability, maintainability, and cloud readiness.
• Provide day‑to‑day technical direction and mentorship for internal and contract developers.
• Collaborate with product and architecture teams to ensure technical alignment.
• Communicate technical concepts clearly to both technical and non‑technical stakeholders.
• Build out automated CI/CD pipelines using modern tooling and cloud platforms.

Tech Stack

Java (Spring Boot), React/TypeScript, Docker, AWS.

What We're Looking For

• Hands‑on experience with Java and Spring Boot.
• Front‑end experience with React / JavaScript / TypeScript.
• Strong knowledge of Docker and AWS SaaS environments.
• Skilled with PostgreSQL and Redis in production systems.
• Experience with CI/CD, automated testing, and security best practices.
• A self‑starter who thrives in a collaborative, global team environment.

Why Join?

This is a fantastic opportunity to work with a global business that has the ambition of a startup and the stability of an established software company. You'll join a talented, collaborative team where your voice is heard, and your work makes a real impact.

You'll benefit from a competitive compensation package, excellent health benefits, flexible time off, learning opportunities, and a supportive environment that encourages innovation, growth, and balance.

📩 Interested? If you're a senior engineer who loves tackling complex problems, modernising technology, and mentoring teams - we'd love to hear from you. Apply today to learn more about this exciting opportunity with MCS Group.

To speak in absolute confidence about this opportunity, please send an up to date CV via the link provided or contact [e-mail]. Even if this position is not right for you, we may have others that are. Please visit MCS Group to view a wide selection of our current and exclusive roles www.mcsgroup.jobs

MCS Group is committed to Equality, Diversity, and Inclusion for all, being the first recruitment agency in NI to achieve Bronze Diversity Mark accreditation, if you have a disability which means you require a reasonable adjustment to be considered at any stage of the recruitment process, please contact us and we will endeavour to facilitate the request.

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